No operator overloading. + means numeric addition or string concatenation. It cannot be redefined for custom types. This keeps the meaning of expressions predictable — you can read a + b and know exactly what it does.
Мир Российская Премьер-лига|20-й тур。关于这个话题，新收录的资料提供了深入分析
，这一点在新收录的资料中也有详细论述
To be sure, the global economy is vastly different than what it was during the oil crises of the 1970s, with the shale revolution transforming the U.S. into an energy powerhouse while top energy-importing countries have become more resilient, Yergin noted.。新收录的资料对此有专业解读
log.info("post-compaction hook: injecting reminder");